CN106932210A - The engine bench test system and its method of testing of NEDC cyclic brake operating modes - Google Patents
The engine bench test system and its method of testing of NEDC cyclic brake operating modes Download PDFInfo
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- CN106932210A CN106932210A CN201710210074.1A CN201710210074A CN106932210A CN 106932210 A CN106932210 A CN 106932210A CN 201710210074 A CN201710210074 A CN 201710210074A CN 106932210 A CN106932210 A CN 106932210A
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- motor
- entire car
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- car controller
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
Abstract
The invention discloses a kind of engine bench test system and method for NEDC cyclic brakes operating mode, including entire car controller, electric machine controller, simulator cockpit, motor and dynamometer machine；The simulator cockpit signal is connected to the entire car controller for brake-pedal travel signal to be sent to the entire car controller；State entire car controller signal and be connected to electric machine controller for sending motor braking torque signal to the electric machine controller and motor is controlled according to the motor braking torque signal；The entire car controller signal is connected to measurement of power machine frame for sending mechanical braking torque signal to the measurement of power machine frame and dynamometer machine is controlled according to the mechanical braking torque signal；The output shaft that the dynamometer machine is mechanically connected to the motor is used to apply torque load to the output shaft of the motor；The system can test NEDC state of cyclic operations to verify integrated vehicle control tactics in platform experiment room, obtain the economy of vehicle.
Description
Technical field
The present invention relates to electric motor car testing field, the engine bench test system of specifically a kind of NEDC cyclic brakes operating mode and its
Method of testing.
Background technology
The exploitation of vehicle control unit of electric vehicle, the matching of each power part is very important work.Truly filling
, it is necessary to carry out hardware-in―the-loop test to VCU before car, MCU carries out bench test, and BMS carries out charge and discharge electric test.Each trying
After testing successfully, in addition it is also necessary to which this three electric system is integrated, a three electric system united tests are done.Existing three electric systems joint debugging examination
Check system formula due to there is no a mechanical braking part, therefore during vehicle is braked, it is impossible to enough carry out NEDC state of cyclic operations
Test.
On the other hand, on existing three electric united test stands, the brake signal that entire car controller hair draws is one
Switching signal, normal or braking.The problem brought is can not to carry out the test of NEDC state of cyclic operations.
Therefore, integrated vehicle control tactics are verified in order to test NEDC state of cyclic operations in platform experiment room, obtains the warp of vehicle
Ji property is, it is necessary to the engine bench test system and its method of testing of a kind of NEDC cyclic brakes operating mode.
The content of the invention
In view of this, the purpose of the present invention is to overcome defect of the prior art, there is provided one kind can be in platform experiment room
Test NEDC state of cyclic operations to verify integrated vehicle control tactics, obtain a kind of platform of NEDC cyclic brakes operating mode of the economy of vehicle
Frame test system and its method of testing.
A kind of engine bench test system of NEDC cyclic brakes operating mode of the invention, including entire car controller, electric machine controller,
Simulator cockpit, motor and dynamometer machine；The simulator cockpit signal is connected to the entire car controller for that will brake
Pedal travel signal is sent to the entire car controller；State entire car controller signal and be connected to electric machine controller for by motor system
Dynamic torque signal sends to the electric machine controller and motor is controlled according to the motor braking torque signal；Institute
State entire car controller signal and be connected to measurement of power machine frame for mechanical braking torque signal to be sent to the measurement of power machine frame simultaneously
Dynamometer machine is controlled according to the mechanical braking torque signal；The dynamometer machine is mechanically connected to the defeated of the motor
Shaft is used to apply torque load to the output shaft of the motor；
The engine bench test system of NEDC cyclic brakes operating mode of the invention also includes HIL testboard bays, the HIL testboards
Frame signal is connected to the entire car controller；
The engine bench test system of NEDC cyclic brakes operating mode of the invention also includes being powered for the motor
Electrokinetic cell and the battery management system for being managed to the electrokinetic cell；The battery management system signal connection
In the entire car controller and simulator cockpit；
The invention also discloses a kind of stand test method of NEDC cyclic brakes operating mode, comprise the following steps：
A. the analog quantity of the stroke of the brake pedal in simulator cockpit is converted into voltage and is sent to full-vehicle control
Device；B. the entire car controller calculates vehicle total braking force F according to the braking acceleration in NEDC each period of state of cyclic operation1,
Stroke according to the brake pedal obtains the motor braking torque T under the trip2；C. according to the vehicle total braking force F1With
Motor braking torque T2Obtain dynamometer machine braking moment T3,i0It is final driver ratio, R is wheel
Rolling radius, entire car controller described in d. is by the motor braking torque T2With dynamometer machine braking moment T3Correspond to respectively and send extremely
Electric machine controller and dynamometer machine, so as to be controlled to motor and dynamometer machine.
Further, in the step a, the voltage is sent to by the entire car controller by udp protocol.
The beneficial effects of the invention are as follows：The engine bench test system of NEDC cyclic brakes operating mode of the invention, full-vehicle control
(VCU) deceleration needed for its each damped condition according to NEDC state of cyclic operations determines the total braking force of vehicle, and always makes
Power is produced jointly by the mechanical braking moment of torsion of motor plugging moment of torsion and dynamometer machine, and motor plugging moment of torsion is
Determined by the stroke of the brake pedal in simulator cockpit, therefore, in this test system, VCU sends according to simulator cockpit
Brake-pedal travel signal determine motor braking moment of torsion corresponding with the brake-pedal travel, torsion is then always braked with vehicle
Square subtracts the corresponding motor braking moment of torsion of current brake pedal stroke and obtains mechanical braking moment of torsion, according to vehicle rolling radius, passes
Efficiency of movement, transmission gear ratio can calculate the mechanical braking moment of torsion that dynamometer machine needs to apply, and then VCU is according to machine obtained above
Tool braking torque and motor braking moment of torsion are controlled to dynamometer machine and electric machine controller respectively so that three Electricity Federation commissioning examinations can
Simulation vehicle in NEDC working condition measurements, so as to verify the economic performance of vehicle, calculate hundred kilometers of power consumptions and, in total continuation of the journey
Journey.
Brief description of the drawings
The invention will be further described with reference to the accompanying drawings and examples：
Fig. 1 is the connection diagram of the engine bench test system of NEDC cyclic brakes operating mode of the invention.
Specific embodiment
Fig. 1 is the connection diagram of the engine bench test system of NEDC cyclic brakes operating mode of the invention；As illustrated, this reality
Apply the engine bench test system of the NEDC cyclic brake operating modes of example, including entire car controller (VCU), electric machine controller (MCU), simulation
Driving cabin, motor and dynamometer machine；The simulator cockpit signal is connected to the entire car controller to be used for brake pedal
Stroke signal is sent to the entire car controller；The entire car controller signal is connected to electric machine controller to be used for motor braking
Torque signal sends to the electric machine controller and motor is controlled according to the motor braking torque signal；It is described
Entire car controller signal is connected to measurement of power machine frame for mechanical braking torque signal to be sent to the measurement of power machine frame and root
Dynamometer machine is controlled according to the mechanical braking torque signal；The dynamometer machine is mechanically connected to the output of the motor
Axle is used to apply torque load to the output shaft of the motor；Full-vehicle control (VCU) its according to each of NEDC state of cyclic operations
Deceleration needed for individual damped condition determines the total braking force of vehicle, and total braking force is by motor plugging moment of torsion and survey
What the mechanical braking moment of torsion of work(machine was produced jointly, and motor plugging moment of torsion is by the row of the brake pedal in simulator cockpit
What journey was determined, therefore, in this test system, the brake-pedal travel signal that VCU sends according to simulator cockpit is determined and this
The corresponding motor braking moment of torsion of brake-pedal travel, then subtracts current brake pedal stroke corresponding with the total braking torque of vehicle
Motor braking moment of torsion obtains mechanical braking moment of torsion, and measurement of power can be calculated according to vehicle rolling radius, transmission efficiency, transmission gear ratio
Machine needs the mechanical braking moment of torsion for applying, and then VCU distinguishes according to mechanical braking moment of torsion obtained above and motor braking moment of torsion
Dynamometer machine and electric machine controller are controlled so that three Electricity Federation commissioning examinations can simulate vehicle in NEDC working condition measurements, so that
The economic performance of vehicle is verified, hundred kilometers of power consumptions and total course continuation mileage is calculated.
The engine bench test system of the NEDC cyclic brake operating modes of the present embodiment also includes HIL testboard bays, the HIL tests
Stand signal is connected to the entire car controller；HIL testboard bays can simulate different road environments and each by what is simulated
Control signal is planted to send to VCU.
The engine bench test system of the NEDC cyclic brake operating modes of the present embodiment also includes being used to be powered for the motor
Electrokinetic cell and the battery management system for being managed to the electrokinetic cell；The battery management system signal connects
It is connected to the entire car controller and simulator cockpit.
A kind of stand test method of NEDC cyclic brakes operating mode of the invention, comprises the following steps：A. by drive simulating
The analog quantity of the stroke of the brake pedal in cabin is converted to voltage and sends to entire car controller；
B. the entire car controller calculates vehicle and always brakes according to the braking acceleration in NEDC each period of state of cyclic operation
Power F1, in the present embodiment, gross mass 1940kg, kerb weight 1565kg, complete vehicle quality are (1940kg), and NEDC circulates each system
The total braking force of condition of starting building such as following table：
Stroke according to the brake pedal obtains the motor braking torque T under the trip2；C. always made according to the vehicle
Power F1With motor braking torque T2Obtain dynamometer machine braking moment T3,
In the present embodiment, the corresponding motor braking torque T of each brake-pedal travel2Such as following table：
The dynamometer machine braking moment such as following table for calculating：
D. the entire car controller is by the motor braking torque T2With dynamometer machine braking moment T3Correspond to respectively and send to electricity
Machine controller and dynamometer machine, so as to be controlled to motor and dynamometer machine.
In the present embodiment, in the step a, the voltage is sent to by the entire car controller by udp protocol,
Udp protocol amounts to 12 bytes, wherein above two AA are packet header, behind two AA be bag tail.Middle 8 bytes are two
U32 data (a reserved data may be used in the future).Example：Brake pedal is 5.02%, then 0.0502 × 10000=502
502 are converted into 16 system U32 for 00 00 01 F6.Transmission data are the AA of 00 00 01 F6 of AA AA 00 00 00 00
AA.Motor bench computer receives IP:192.168.0.1, port numbers 1234.Simulator cockpit is sent to the UDP of motor bench
Information, time interval 5ms, transmission interval is oversize to influence dynamic control effect.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to compared with
Good embodiment has been described in detail to the present invention, it will be understood by those within the art that, can be to skill of the invention
Art scheme is modified or equivalent, and without deviating from the objective and scope of technical solution of the present invention, it all should cover at this
In the middle of the right of invention.
Claims (5)
1. a kind of engine bench test system of NEDC cyclic brakes operating mode, it is characterised in that：Including entire car controller, motor control
Device, simulator cockpit, motor and dynamometer machine；
The simulator cockpit signal is connected to the entire car controller for brake-pedal travel signal to be sent to described whole
Vehicle controller；
The entire car controller signal is connected to electric machine controller for motor braking torque signal to be sent to the motor control
Device processed is simultaneously controlled according to the motor braking torque signal to motor；
The entire car controller signal is connected to measurement of power machine frame for mechanical braking torque signal to be sent to the dynamometer machine
Stand is simultaneously controlled according to the mechanical braking torque signal to dynamometer machine；
The output shaft that the dynamometer machine is mechanically connected to the motor is used to that the output shaft of the motor to be applied to turn round
Square load.
2. the engine bench test system of NEDC cyclic brakes operating mode according to claim 1, it is characterised in that：Also include HIL
Testboard bay, the HIL testboard bays signal is connected to the entire car controller.
3. the engine bench test system of NEDC cyclic brakes operating mode according to claim 1, it is characterised in that：Also include being used for
The electrokinetic cell powered for the motor and the battery management system for being managed to the electrokinetic cell；It is described
Battery management system signal is connected to the entire car controller and simulator cockpit.
4. a kind of stand test method of NEDC cyclic brakes operating mode, it is characterised in that comprise the following steps：
A. the analog quantity of the stroke of the brake pedal in simulator cockpit is converted into voltage to send to entire car controller；
B. the entire car controller calculates vehicle total braking force F according to the braking acceleration in NEDC each period of state of cyclic operation1,
Stroke according to the brake pedal obtains the motor braking torque T under the trip2；
C. according to the vehicle total braking force F1With motor braking torque T2Obtain dynamometer machine braking moment T3
Wherein igIt is transmission ratio, i0It is final driver ratio, R is the rolling radius of wheel；
D. the entire car controller is by the motor braking torque T2With dynamometer machine braking moment T3Correspond to respectively and send to motor control
Device processed and dynamometer machine, so as to be controlled to motor and dynamometer machine.
5. the stand test method of NEDC cyclic brakes operating mode according to claim 1, it is characterised in that：The step a
In, the voltage is sent to by the entire car controller by udp protocol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710210074.1A CN106932210A (en) | 2017-03-31 | 2017-03-31 | The engine bench test system and its method of testing of NEDC cyclic brake operating modes |
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| CN201710210074.1A CN106932210A (en) | 2017-03-31 | 2017-03-31 | The engine bench test system and its method of testing of NEDC cyclic brake operating modes |
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| CN106932210A true CN106932210A (en) | 2017-07-07 |
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| CN201710210074.1A Pending CN106932210A (en) | 2017-03-31 | 2017-03-31 | The engine bench test system and its method of testing of NEDC cyclic brake operating modes |
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| CN108422896A (en) * | 2018-02-01 | 2018-08-21 | 阿尔特汽车技术股份有限公司 | A kind of electric vehicle deceleration increasing boat control system and method based under specific operation |
| CN109470481A (en) * | 2018-11-13 | 2019-03-15 | 安徽江淮汽车集团股份有限公司 | A kind of engine rig test method |
| CN113361835A (en) * | 2020-03-03 | 2021-09-07 | 中车时代电动汽车股份有限公司 | Method and device for evaluating comprehensive efficiency of electrically-driven product |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108422896A (en) * | 2018-02-01 | 2018-08-21 | 阿尔特汽车技术股份有限公司 | A kind of electric vehicle deceleration increasing boat control system and method based under specific operation |
| CN109470481A (en) * | 2018-11-13 | 2019-03-15 | 安徽江淮汽车集团股份有限公司 | A kind of engine rig test method |
| CN113361835A (en) * | 2020-03-03 | 2021-09-07 | 中车时代电动汽车股份有限公司 | Method and device for evaluating comprehensive efficiency of electrically-driven product |
| CN113361835B (en) * | 2020-03-03 | 2023-07-07 | 中车时代电动汽车股份有限公司 | Method and device for evaluating comprehensive efficiency of electric drive product |
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Application publication date: 20170707 |